摘要
上海地铁7号线云台路站基坑降水施工中采用将不同作用的疏干井和降压井合并为同一井(联合降水井)进行降水的施工技术,具体介绍了降水井的设置、基坑稳定性分析和水位降深预测过程。施工实践表明,联合降水井施工方案很好地达到了降水目标,提高了功效,社会效益和经济效益明显。该技术的成功应用为富水软土地质条件和复杂城市环境条件下的地铁车站深基坑降水施工提供了新的思路。
With the construction of the Yuntai Road Station of the No. 7 Branch Line of Shanghai Metro as a practical example, the technique of combining various draining wells and water-lowering wells into a joint water-level lowering well for the construction of deep foundation pits is dwelled on in the paper, with stress placed on the location of joint water-level lowering wells, the analysis of the stability of the foundation pits, and the pre-measuring process of water-level lowering effects. It is proved in construction practice that the construction plan of joint water-level lowering wells enables the realization of the water-lowering targets, enhances the performance, and achieves obvious economic and social effects. The successful application of the technique provides a new thinking way for the construction of deep foundation pits for metro stations in water-abundant and soft soil geological conditions, and complex urban environments.
出处
《国防交通工程与技术》
2008年第3期42-45,共4页
Traffic Engineering and Technology for National Defence
关键词
地铁车站
深基坑
联合降水井
疏干井
降压井
metro station
deep foundation pit
joint water-level lowering well
draining well
water-lowering well
作者简介
李刚（1971-），男．高级经济师．1991年毕业于石家庄铁道学院．工学学士．现主要从事轨道交通工程方面的技术工作b091g@zt17．cn
